Comments augment the code by providing information at a different level of detail. Some comments provide information at a lower, more detailed, level than the code; these comments add precision by clarifying the exact meaning of the code. Other comments provide information at a higher, more abstract, level than the code; these comments offer intuition, such as the reasoning behind the code, or a simpler and more abstract way of thinking about the code. Comments at the same level as the code are likely to repeat the code.
